Syntax Magazine

| \ I I /\ j£ Serving Timex-Sinclair
| I I Personal Computers

A PUBLICATION OF THE HARVARD GROUP

VOL - 4 NO . 6 _ ISSN 0273-2696 JUN., 1983

IN THIS ISSUE

COLOR TS2000 , 16K TS1500, MODEM THIS SUMMER

8K Programs

Checkers for Two . 8

Design . 14

Egg Timer . 14

Letter Train . 16

Book Review
Your Timex Sinclair

1000 and ZX81 . 10

Classified Ads . 21

Dear Editor . 12

Defining Functions

on the ZX/TS . 6

Disable Auto-List . 7

LPRINT Bug Bypass

for TS2040 . 4

LOADing ZX/TS-ZX/TS _ 20

MC Video Invert . 21

New Features 1500/2000.. 8
New Products

and Services . 2

News . 1

Program Improvements .... 4
Software Review

Frogger . 17

Syntax Errors . 4

Users' Groups . 4

Vendor Report . 16

Index of Advertisers

Byte-Back . 8

Discount Software . 9

E-Z Key . 20

Expense Cutters . 21

Ganhart/Ear things . 16

Hawg Wild . 17

Kopak . 11

Melbourne House . 6

Memotech Corp . 18

Pegasus Micro Systems. .10

People's Computer . 20

Suntronics . 5

Timex Sinclair User.... 15

Timex reports it will begin sales this August
of TS2000S with 16K or 48K RAM, color/sound
capabilities and bank-switching. The 16K
version will sell for $149.95; the 48K for
$199.95, says Timex. Both versions contain
24K ROM, including 8K ROM for cartridge ca¬
pabilities and bank-switching. With bank¬
switching the computer can potentially use up
to 256 blocks of 64K memory one at a time.
Color capabilities include an eight-color
range, flash command and brightness control.
Sound broadcasts in an eight-octave scale.

Users can individually address 256 hori¬
zontal and 192 vertical dots that provide
high resolution graphics. The TS2000 fea¬
tures a display area of 24 lines with up to
64 characters and allows monitor connections.

Other features include a built-in time
clock, moveable keys, upper and lower case
letters, repeat feature on all 40 keys, and
instant-load software cartridges that plug
into the computer, at $12.95 to $29.95 each.
TS2000S will run ZX Spectrum cassettes.

Sales of $79.95 16K TS1500S with move-
able keys will begin in July with compatible
modems and software cartridges available in
August. Existing Timex peripherals will run
with both new computers. TS1500S will sell
with a rewritten, user-friendly manual, says
Timex' Sue Mahoney.

TS1000 IN CANADA THIS JUNE

Timex Canada plans to market TS1000S sometime
in June, with customer sales starting in late
June or early July. The company projects an
initial 100,000 unit release, says a Timex
spokesperson. Timex Canada says it also
plans a Canadian nationwide toll-free Sin¬
clair information line sometime in June and a
newsletter similar 'to US Timex' Ramblinas.

MEMOPAK-TS 2040 CURE — SEE PAGE 17

1

NEW PRODUCTS AND SERVICES

Secrets of Better BASIC by Ernest
Mau offers programming, debugging
methods, contains five appendices
of BASIC information. $14.95. Mi¬
crocomputers Can Be Kid Stuff by
Anna Mae Walsh teaches kids BASIC,
Pilot, games, problem solving. Pbk,
$8.95. (Books do not use Sinclair
BASIC.) Hayden Book Co., 50 Essex
St, Rochelle Park, NJ 07662.

MY TYPE teaches touch typing on
your Big ZX81 Keyboard. Mistakes,
WPM listed at end of each lesson.

$8 per 16K tape. Daydesign, 790
E. Big Beaver Rd., Troy, MI 48084,
313/528-0469.

COMPUWIZ SOFTWARE offers discount
for new customers — 3 tapes with 8
games for $12 plus $2 P&H until
Dec., CA residents add 6.5% tax.
COMPUWIZ SOFTWARE, POB 390078, Mt.
View, CA 94039.

UCLA Extension offers Introduction
to Computer Programming with the
Timex 1000 . a course for adults
with no programming background, by
Roger Palmer, UCLA School of Libra¬
ry and Information Science. Course
notes from CIBBARELLI, 11684 Ventu¬
ra Blvd., Suite 295, Studio City,

CA 91604, 213/760-8110.

Free to teachers — TEC News, a quar¬
terly newsletter for Timex educa¬
tional applications. Includes get¬
ting started, teacher reports, les¬
son plans, programming tips. From
TS Educators User Grp., Texas Wes¬
leyan College and Timex Computer
Corp. M. Mark Wasicsko, Associate
Dean, School of Education, TWC, Ft.
Worth, TX 76105.

Hi-Res Printer Graphics 16K tape
uses machine code routines to print
high resolution graphic plots of
192x256 pixels. High speed line
drawing routine and demonstration
programs. $10 PP. G. Russell, RD
1 Box 539, Centre Hall, PA 16828.

I

TAX BREAKS FOR COMPUTER BUYERS by
Vernon Jacobs, CPA, gives info on
how to deduct up to $5,000 yearly
for computer use in business, in¬
vestment management, program devel¬
opment, some personal uses. 26-
pages, $9. Research Press, Box
8137-P, Prairie Village, KS 66208.

Universal Software Market Identi¬
fier, an international software
product registration system, iden¬
tifies software publisher, software
package, computer model, minimum
hardware configuration. USMI Mar¬
ket Directory with listings dis¬
tributed to software dealers. Soft¬
ware publishers listed free. Up¬
dated bimonthly. Technique Learn¬
ing, 40 Cedar St., Dobbs Ferry, NY
10522, 914/693-8100.

SofTec offers three computer-aided
design programs to automatically
calculate component and circuit
values for amplifier and power sup¬
ply configurations. All CAD pro¬
grams in BASIC. $10.95 amplifier
CAD, $12.95 power supply CAD. Sof¬
Tec, POB 432, Fairport, NY 14450.
Send SASE for free brochure.

DJM Software Grand Opening offer,
Graphit! Pie Chart Generator 16K
$9.95, 16K and Memopak HRG $14.95.
Each $5 off regular price. Opening
June 15. Orders must be postmarked
by July 15. DJM Software Co., 2214
Horine Road, Festus, MO 63028.

1983 Software Writer's Market by
Christine Leu contains information
on selling software and books for
Timex Sinclair markets. Lists pub¬
lishers, shows, distributors, manu¬
facturers. $19.95, $2 P&H, Kern
Publications, 190 Duck Hill Rd.,

POB 1029, Duxbury, MA 02332.

SIFT, Statistical Interactive Sys¬
tem For the TS1000 and ZX81, in¬
cludes statistical routines such as
linear regression, T-tests, analy¬
sis of variance. $25. COMPUCRAFT,
POB 149, Hinsdale, NH 03451.

2

Avoid losing programs during crash¬
es with Flexible Ribbon. Stops
movement between computer and RAM
pack during white-outs or crashes.
Comes with six inch ribbon and two
connectors. $15, DK'Tronics, Unit
2, Shire Hill Industrial Estate,
Saffron Walden, Essex CBll 3AQ, UK.

Computer Control Center work sta¬
tion eliminates cable clutter, pro¬
vides sleek, professional look to
computer area. Holds RAM packs,
tapes, 13" screen. 20"xl4 1/2".
$29.95. TIMEWORKS, 405 Lake Cook
Rd., Bldg. A, Deerfield, IL 60015,
312/291-9200.

Sinclair Full Travel Keyboard with
high quality keyswitching. $54.81.
Bulk order discounts over 25. Top-
tronics, 4018-A W. Chandler Ave.,
Santa Ana, CA 92704.

User group discounts on printers,
paper, ribbons. Call collect with
user group name for special buying
status. Midwest Micro-Peripherals,
119 S. Springfield, St. Paris, OH
43072, 513/663-5488.

BUY-PHONE electronic yellow pages,
free videotext service for West Los
Angeles area. Contains over 10,000
listings of products, services, en¬
tertainment. BUY-PHONE, POB 29307,
Los Angeles, CA 90027, 213/279-
1074. Access number 213/474-0270.

Heart of Texas Computer Show, Sept.
16-18, includes Sinclair products,
emphasis on small business systems,
educational applications and medi¬
cal office use. Bud Houston, Heart
of Texas, POB 12094, San Antonio,

TX 78212, 512/226-4636.

Music/Sounds Package includes in¬
structions for broadcasting music
and spaceship noises to a nearby
radio. No hardware mods required.
Controls ZX/TS RF interference.

Five BASIC program listings $3.
Florida Creations, Dept. P, Box
16422, Jacksonville, FL 32245.

Hand-held DBH Converter easily con¬
verts dec, hex and binary, ho need
to load a program. $3.50 assem¬
bled, includes P&H. Rois Harder,
995 Shakespeare Ave, N. Vancouver,
BC, Canada V7K 1E7, 604/980-4167.

Computer Show & Office Equipment
Expositions, includes 4-hr. seminar
using TS1000, $89.95 for seminar
and TS1000. Mid-Atlantic, Wash¬
ington Convention Center, Wash. DC,
Oct. 27-30; Southeast, Civic Cen¬
ter, Atlanta, GA, Dec. 8-11. Com¬
puter Expositions, POB 3315, Anna¬
polis, MD 21403, 800/368-2066, 800/
492-0192 in MD.

Increase your ZX/TS library — join
an exchange club, find a Compu-Pal
to share ideas. ZX/TS Software
Exchange Club, Box 5021, Suite 100,
Spring Hill, FL 33526. Send large
SASE for prompt reply.

BUSYNESS, a new magazine for busi¬
ness/professional TS users. Sub¬
scribers, new products, reviews
needed. Shaun Ralston, Busyness,
POB 421773, San Francisco, CA
94101, 415/861-7741.

ONLINE '83 conference for database
users. Palmer House, Chicago, Oct.
10-12. Jean-Paul Emard, Online,
Inc., 11 Tannery Ln., Weston, CT
06883, 203/227-8466.

Four fast-action 16K MC games, NFLX
Football, Storm Lander, Miner's
Revenge, Super Slide. $9.95 each,
includes P&H. SyncWare, POB 5177,
El Monte, CA 91734.

Save $100 from Memotech when you
order any product and printer pack¬
age together. Memotech Corp., 7550
W. Yale Ave., Denver, CO 80227,
800/662-0949. Until June 30 only.

MAA, Multi-Attribute Analysis, a
decision aid to help make complex
decisions, $19.95, $2 P&H, Stuart
Software, 25381-G Alicia Pky, Suite
316, Laguna Hills, CA 92653.

3

SYNTAX ERRORS

PROGRAM IMPROVEMENTS

Add line 250 COPY to BANNER WRITER
(May83) to send message to printer.

The correct address for QZX news¬
letter from the Sinclair Amateur
Radio Users' Group (Dec. 82) is:

Alex Burr, K5XY, Box 3D, Physics
Dept., New Mexico State University,
Las Cruces, NM 88003.

LPRINT BUG BYPASS FOR TS2040

LPRINT prints some wrongprint
on the TS2040, due to an 8K ROM
problem. SYNTAX (Dear Editor, May
83) describes a hardware solution.
We found a way to bypass the bug
with a simple programming trick.

In this demo program, lines 20-40
print the error, 0.0XYZ1. Lines 50
-60 avoid this error to get the
correct printout, 0.0001.

Use this two-line procedure
for any number from 0.01-0.00001:
Assign the expression to STR$, then
LPRINT the string.

STR$ does not always work with
other string functions used with
LPRINT. These five LPRINT commands
print the wrong results or give
incorrect error messages:

LPRINT (STR$ 100) (2) gives 100
(should be 0, gives error code 3).
LPRINT LEN STR$ 10 gives 100
(should be 2) .

LPRINT STR$ 100 AND 0 gives 100
(should be blank line) .

LPRINT VAL STR$ 100 gives 100
(correct but stops with error C) .
LPRINT CODE STR$ 100 gives 1000
(should be 29 ) .

ZX Users Group of New York, NYC

Avoid confusion between the
variable LEN and function LEN in
lines 30 and 50 of BANNER WRITER
(May 83) with these two steps:
DELETE line 30 and EDIT line 50 to
read FOR L=1 TO LEN M$. (Use the
LEN function on the K key.)

Robert L. Doud, Woodland, CA

ZX/TS USERS' GROUPS

Check our latest list of new user's
groups to find one in your area.

To check for a local group that's
not listed, or to announce a new
group, call 617/456-3661 or write
SYNTAX, RD 2, Box 457, Harvard, MA
01451. Send SASE if requesting
name of group in your area.

Montreal: Montreal Area Users

Club, Serge Montmarquette, 509
Notre-Dame, Joliette, P. Que.,
Canada J6E 3H6, 514/756-6688.

St. Louis, MO: Jefferson County
Users Group (subgroup of St. Louis
Users Group). Larry Ross, 937-4550
All computers, non-users welcome.

Orleans, MA: The Wizards of Cod,
Richard Andrews, POB 234, So. Or¬
leans, MA 02662, 617/255-4290.

Southeast Florida: ZX Southeast
Region, Ralph M. Coletti, 869 Le¬
vitt Parkway, Rockledge, FL 32955.

Hurlburt Field, FL: Tom Bair, 12
Mayo St., Hurlburt Field, FL 32544.

Dallas, TX: T. Taylor, 2936 Long-
meade, Farmers Branch, TX 75234.

Kansas City, MO: Col. Ralph H.
Goodell, Jr., 913/381-9443 or
913/648-6696.

Springfield, MA: If interested
in forming users group, contact M.
Dale White, 20 Frost St., Spring-
field, MA 01105, 413/739-2350.

4

FULL SIZE KEYBOARD
CONVERSION

FOR

YOUR

ZX-81/

TS-1000

Fully Warranteed
For 90 Days!

SUN KD-81

If you're tired of not knowing whether your data got entered or tired of pok¬
ing data in with one or two fingers, then it’s time to upgrade your ZX-81 to
a full size, professional keyboard. The SUN KD-81 KEYBOARD offers all
the ease and comfort of imputting your programs and text on a fast and ef¬
ficient professional-sized keyboard!

KD-81 FEATURES

INSTALL

• No Soldering

• No Modifications

GET A BETTER PICTURE WITH SAMWOO MONITORS

FOR YOUR SINCLAIR COMPUTERS Foat„rOC-

The SAMWOO provides a much better picture than your TV reaiureb.
monitor. Includes easy-to-follow instructions for a simple * Composite \
modification. _ Input/Outpu

9" 18Mhz BANDWIDTH

Green . $121.00

Orange . 125.00

12" 12Mhz BANDWIDTH

Green . $130.00

Orange . 134.00

Add $7.50 Shipping and Handling for this item.

Features:

• Composite Video
Input/Output

• Switchable Input
Impedance 75 or
lOKohm

• 750 Line Resolution
at Center and 500
Lines at Corners

• Dimensions are
12.13" x 11.34" x
11.65" for the 12"
model and 8.66" x
8.54" x 9.05" for the
9" model

And enjoy the comfort and
ease of inputting your data
on a full size keyboard!

1. Remove 4 screws securing ZX-81 case
and remove 2 screws holding ZX-81 PCB.

2. Unplug the 2 ribbon cables from the
ZX-81 keyboard.

3. Plug the 2 ribbon cables into the con¬
nectors on the KD-81 keyboard.

4. Attach the ZX-81 PCB to the KD-81
case with 2 screws, close case and install
remaining 4 screws into the bottom of the
KD-81 Keyboard case ...

• Full size keyboard with 41 keys

• Two color silk-screened key tops
for easy reading

• Key tops have commands and
graphics spelled out the same as
ZX-81

• Extra shift key for real keyboard-
style typing

• Full size space bar

• Allows touch typing

• Rear cutout allows any RAM or

expansion module to be plugged
in

• Keyboard comes with own cables

• Keyboard case holds both
keyboard and computer with room
to spare

• High impact plastic case with
vaporized metal shielding

• Easy assembly — no soldering,
no modifications

• Measures 10%" x TU” x

Check out these
simple

SUNTRONICS CO., INC.

12621 Crenshaw Blvd., Hawthorne, CA 90250

STORE HOURS: MON.-FRI. 9:00 am to 6:00 pm
SATURDAY 10:00 am to 5:00 pm

CALIFORNIA OUTSIDE CALIFORNIA TOLL FREE

213-644-1149 1-800-421-5775

(for Tech Info and Calif, orders) (Order Desk Only)

Mail Order — Minimum Order $10. Send Money Order or Check to P.O. BOX 1957 —
DEPT. B, HAWTHORNE, CA 90250. VISA or Mastercard (please include expiration
date). Add $4.00 postage and handling to order. CA residents add 6% sales tax.

DEFINING FUNCTIONS ON THE ZX/TS

You sit down to type in a non-
Sinclair BASIC program into your
ZX/TS only to find in the listing a
FN(A) statement. Should you forget
about the rest of the program? No.
We'll simulate a defining functions
feature. This versatile approach
is actually better than other
micros' function defining feature.

Assigning the function to a
string and calling it by using the
VAL command executes the function.
Although the ZX/TS manual briefly
explains the procedure, you can use
and expand this ability to satisfy
a variety of programming needs.

For those not familiar with
the VAL command, it takes the ac¬
tual numeric value of any numbers
or numeric phrases in a string
variable. The ZX/TS expression
evaluator looks at the formula
assigned to the string and performs
all the incorporated calculations.
Example: If your borrowed program

contains these lines:

100 DEF FN (A) =X/. 0 23 *SIN (X-2 )
200 LET X=X-FN (A)
change them to:

Like other computers' FN(A)
statement, when you call the func¬
tion on your ZX/TS the variables in
the formulas must have some pre¬
assigned value; no 0 default exists
for unassigned variables.

You can also put USR calls
(machine language subroutine call)
in the function without affecting
the answer. Suppose you want to
clear the screen each time you call
a certain function. Try this demo
program to see it work:

At last a reference manual
which covers all the hardware
aspects of the TS1 000 - includes
complete circuit diagrams!

Orders to: MELBOURNE HOUSE SOFTWARE

Dept. CS 347 Reedwood Drive, Nashville, TN 37217

Dealer orders and queries: 800/251-5900
(ask for a Melbourne House operator)

Visa and M/C orders

can be phoned in: 615/361-3738

BOOKS:

□ 25895 The Complete Basic Course $34

□ 25957 Machine Language Programming

Made Simple $14.

□ 20922 The Complete Timex/Sinclair

ROM Disassembly $19. 1

□ 26025 Not Only 30 Programs $9.'

□ 25913 Understanding Your ZX81 ROM $14.(

□ 51539 InsandOuts $12!

TAPES:

□ 13941 Gamestape1:li Programs-IK $14!

Enclosed is my check or money order for $ _

Please charge my □ Visa or □ MasterCard Card #

Gamestape 2 3 Games-16K
Gamestape 3: Catacombs
Adventure-16K

Gamestape 4: 3D Monster Maze-16K
Gamestape 5: 3DOrbiter-l6K
Space Trek -16K
Super Invasion-IK
Wall Busters-IK
10 Exciting Programs-IK
Reversi-IK
i Toolbox-IK

| Basic Course 2 cassette pack
Combat Flight-16K

TOTAL: $ _
Residents of CA,MD,TN

please add sales taxes: _

Add $2 for Shipping & Handling,

foreign orders add $6: _

expiration date

MELBOURNE HOUSE SOFTWARE

6

(RUN it in SLOW or you'll miss the
show.) Lines 10-30 fill the screen
with black lines. Line 100 assigns
a value to variable A$. Line 110
tells the computer to calculate the
VALue of A$. It performs the math
in the first part of the formula.
When it comes to the USR 2602, it
goes to the machine language rou¬
tine at that memory location. The
8K ROM clear screen routine resides
at location 2602. In ZX/TS BASIC,
a USR command returns the contents
of the BC registers. So if you
enter 100 PRINT USR 2602 and RUN,
the screen clears and whatever
value is in the BC registers prints
on the screen. So we multiply the
USR command by 0 to nullify the
number it would otherwise return.

Save time and space by includ¬
ing conditional statements in your
functions. The ZX/TS expression
evaluator scans the function, in¬
terpreting true conditionals as 1
and false conditionals as 0. You
don't have to check everything with
IF-THENs. For example:

100 LET G=10
200 LET X=3
300 LET Y=G*X

400 LET A$=(Y<X) *2+2** (Y> (G) ) "

500 PRINT CHR$ VAL$ A$;"AAAA"

Since the first expression is
false (30 is not less than 3), the
ZX/TS evaluates it as 0 and multi¬
plies 0 by 2. The second expres¬
sion is true (30 is greater than
13), so it evaluates as 1. The
computer raises 2 to the first
power, yielding 2, and adds it to
results of the previous operation,

0. Line 500 thus prints the char¬
acter whose code is 2, the graphic
symbol on the 2 key, before the
string "A AAA".

If you know ZX/TS BASIC fairly
well, you probably understand its
string slicing ability. Suppose
A$="ABCDEFG" and you want to print
the first four characters of A$.

You enter 100 PRINT A$( TO 4).

Using this principle you can exe¬
cute certain parts or sections of a
function exclusively. For example.

add to our previous program:

105 LET A$=A$ ( TO 6)

Now the computer evaluates only the
first six characters of A$. Your
answer in line 120 is different,
and you don't get the screen clear¬
ing, because everything after the
first six characters is sliced off.
Be sure not to slice a function
after an operation symbol.

Dave Straub, Petaluma, CA

DISABLE AUTO-LIST

Automatic line listing of pro¬
grams takes too much time when you
type in long programs. This rou¬
tine tricks Sinclair's auto-list
mechanism into malfunctioning so
new program lines do not appear on
the screen. Disable your comput¬
er's auto-list function using this
procedure with or without a loaded
program. If you have machine code
stored in line 1, you must move it
to line 2 with POKE 16510,2. The
MC's starting address then increas¬
es by nine, so call it with USR
16523 instead of USR 16514.

1. Press LIST then ENTER.

2. Type 1 REM 123 then ENTER.

3. Type POKE 16514,118 then ENTER.

4. Type POKE 16515,118 then ENTER.

5. Type POKE 16516,118 then ENTER.

Now press ENTER to try to
LIST. The only thing that should
appear is 1 REM. You can see pro¬
gram lines after line 1 by entering
LIST line number.

Restart auto-list by DELETEing
line 1. Or LIST N, where N is any
program line number greater than 1.
Then POKE 16419, N. Press ENTER and
the program will auto-list. (The
program will not auto-list by pres¬
sing LIST then ENTER.) Disable
auto-list again with POKE 16419,0
or LIST then ENTER. The top pro¬
gram line number in automatic
listings lives at address 16419.

Gary S. Preston, Glade Hill, VA

7

MODULES FOR:

TIMEX-Sinclair

MODEM $119.“

$149 * ASSEMBLED

(RS-232) Port & Software
Included)

64-K MEMORY $129.9K?T

the “ ULTIMATE MEMORY ”

FEA TURES: *139 “ assembled

• Battery backup ^

• PROM/ROM socket

• Reset Switch

• BYTE-BACK EXCLUSIVE FULL 64-K

The 0-8K area is available You can execute a copy routine (provided) to
copy theTIMEX ROM into the 0-8K area of RAM then flipa switch and you
have your operating system in RAM You can modify it and create your
own customized operating system

WHY PAY MORE FOR LESS FEATURES?

GET THE “ULTIMATE MEMORY" BYTE-BACK UM-64

A COMPANY YOU CAN DEPEND ON

BYTE-BACK CO. is the oldest and one of the world’s largest
suppliers of modules for the ZX81 and TIMEX-Sinclair 1000
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with a track record of proven reliability.

RS-232 PRINTER INTERFACE Only $59“ KIT $69.“ ASSEMBLED
CONTROL MODULE 8 Relays, 8 Inputs, $59“ KIT $69“ ASSEMBLED

16K MEMORY UM16 $59 ,95 KIT $69 * ASSEMBLED & TESTED
Battery backup, reset switch, PROM/ROM socket PLUS. . .

1 year, 100% trade-in credit towards the UM-64.

BYTE BACK CO.

Rt. 3, Box 147, Brodie Road
Leesvllle, S.C. 29070
ORDER PHONE 803-532-5812 Wg*

Add $4.95 shipping & handling to all orders,

90 Day Warranty On All Modules. 10 — Day Return Priviledge

NEW FEATURES ON TS2000, TS1500

Advance publicity photos from
Timex show some interesting fea¬
tures of the new TS2000 and TS1500.

TS2000 functions changed from
Sinclair's ZX Spectrum (TS2000 UK
predecessor) include:

Key TS2000 Spectrum
P RESET (c)

A FREE ~

S STICK I

F ON ERR {

G SOUND 3

Silver-colored TS2000S sport a
full space bar, a larger ENTER key
and a separate BREAK key. A 3"
covered compartment holds a TCC —
Timex Command Cartridge (plug-in
ROM cartridge). The keys appear
hard, unlike Spectrum's soft keys.

Another photo shows the TS1500
case — now rectangular, resembling
the TS2000, but smaller. Keyboard
layout seems identical to the TS
1000's, but with moveable keys that
look like Spectrum's soft keys.

CHECKERS FOR TWO — 8K/16K

Play this game just like board
checkers. To automatically SAVE
the program, type in the listing,
start the recorder and press RUN
then ENTER. The checkerboard takes
about 20 seconds to appear. Press
S as soon as the board appears (be¬
fore the display blinks and the
"L" input appears). The program
saves under "CHECK."

At the bottom, a square shows
which player moves next. Moving a
piece takes 4 steps. First, type
the coordinates (first horizontal,
then vertical) of the starting and
landing squares for each move. Se¬
cond, press either 1 or 2. Press 1
for single moves and final jumps of
multiple moves. Press 2 for all
but the last jump of multiple moves
(You must enter each jump of a mul¬
tiple move separately). Third, hit
space for a regular move or type C
to crown your piece when you get to
your opponent's baseline. Last,
ENTER the move. For example: type
FGEHl ENTER to move a black checker
from space FG to space EH one sin¬
gle move (shown by 1) without a
crown (shown by the space).

Make sure your move is correct
before ENTERing. The program stops
with an error code after some wrong
entries forcing you to reset to the
beginning of the game.

CHECKERS uses about 6K RAM.

Thomas Shields, Franklin, NC

f— :

8

TIMEX 1000

BUSINESS

Budgeting .

Inventory Control

Financial Analyzer

Stock Analyzer

Critical Path Analyzer •«
Bookkeeping . . . .

39*95

39.95

39.95

39.95
l 2# 95

14.95

GAMES

leap Frog .

Star Voyage . . .

Fungaloids . ###*

Invaders . . _

Chess ...» . .

Snakebite . . . .

Packman . . . T

*9.95

59.95

*9.95

59.95

59.95

59.95

59.95

UTILITY

Assembler . .

Disassembler . .

Compiler . T

Graph . .

59-95

59.95

59.95

59.95

AMD MAST MORE EXCITING PROGRAMS

CALL FOR FREE CATALOG

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ROT PO BOX 2530, New Tork, NT 10185
Tel i ( 21 2) 486-0980

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P.O. BOX 397

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Phone 301-348-5865

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ASTRO MAP & CONVERSION: 2 powerful and
educational progs, help you view all 88
constellations, find stars, nebulae &
galaxies. (16K; 48K expanded help section
& charts built in) DESIGN LIST & OTHER
LIST PROGRAMS: 4 separate list progs,
cover all your list needs. SAVINGS & LOAN
ADVISOR, AMORT. & INVEST. COUNSELOR:
advice on wise investment decisions,
reveals hidden costs. (16K, 48K expanded)
MIND BENDERS: 2 challenging games. Multi¬
level guess-the-word and connect-the-dot
for 2. SKILLS CHALLENGE: Save Mr. Bill
(new twist on Hangman) & Naval Sea Battle.
16K programs--$9.95; 48K programs--$14.95
Includes P&H. MD. res. add 5% sales tax

Title:

Author :
Publisher :

Price :

Your Timex Sinclair
1000 and ZX81
Douglas Hergert
SYBEX Inc.

2344 Sixth St.
Berkeley,CA 94710
$6.95

As the latest and best of the
new wave of Timexploitation books,
Your Timex Sinclair 1000 and ZX81
provides clear information about
Timex computers. Hergert leads you
by the hand from unpacking the com¬
puter to programming complex string
functions. His patient writing
style and apparent familiarity with
the computer make this a required
Timex Sinclair reference book.

One key to Hergert's success
lies in his tidy use of demonstra¬
tion programs. This elegant exam¬
ple introduces line numbers, key¬
words, PRINT, PRINT AT, functions,
DELETE, editing, FOR-NEXT loops and
graphics in just 13 lines.

© SYBEX, Inc. 1983
(Note: line 50 is graphic S and H;
line 70 is inverse HELLO.)

Other programs show consider¬
able stand-alone utility as well as
simplifying graphics and strings.
SYBEX's computer book experience
helped produce a well designed for¬
mat. An effective teaching tool
shows what the TV screen looks like
after a demonstration program runs.

Hergert's work serves as a
valuable asset for any TS owner.

John Connell, Neptune Beach, FL

lO

Creations Inc.

ACCOUIO

Your own PERSONAL OR SMALL BUSINESS ac¬
counting system. Contains refinements not usually
found in this type of program. “200 Transaction file”
can be SEARCHED, PRINTED or DISPLAYED. This
program has been throughly tested, and improved
through extensive use . .4nnE

ORDER No. 03-1022 515)95

AUTOFILE

BREAKOUT

Fast MACHINE CODE arcade-type game. If you
haven't tried THIS version, you haven’t played

00°- $1495

“BREAKOUr on the ZX81/TS1000.
ORDER No. 03-4028

PUCKMAN

‘TOUCH-A-MATIC’™

An ELECTRONIC FILING SYSTEM that can be used
for ANY type of data. Set up your own DATA-BASES
with this easy to use, menu-driven program with
AUTO-SEARCH facility. .4Aen

ORDER No. 03-1021 *1:)5U

ORDER No. 01-0007
KOPAICS “TOUCH-A-MATIC”
type more accurately and faster. It requires NO
WIRES, NO SOLDERING. It’s as easy as removing
the adhesive backing and pressing it into position.

’ gives you the power to

LOADS & SAVES 16 K file in 26 seconds instead of
7 minutes! Cleans up signal for a cleaner load.

• STRONGER, SHARPER DIGITAL SIGNAL

• CLEANER, FILTERED POWER • ENCODES YOUR
PROGRAM AND/OR DATE • Save time/Save energy

• Baud rate increases from 250 to over 4000 bps. A

must for all ZX81/TS1000 owners. *onnc

ORDER No.04-1010 5^5)90

Dealer Inquiries Invited

COMPOSER

Enables you to play any tune through your T.V.
speaker, your cassette recorder or through an A.M.
radio. With ‘COMPOSER’ you can control the dura¬
tion of each note. And you can save your song on

ORDER No. 03-3012 $1995

G R A F I X

Draw and store complex images. Permits you to
create, mix, and save your own screen artwork. You
can mix graphics created with GRAFIX into another
program. By itself or on tape. This program is a
“must” for the CREATIVE PROGRAMMER.*., -oc
ORDER No. 03-6005 $1495

Z-99™ (Improved ‘M’-Coder)

Now you can write MACHINE CODE PROGRAMS on
your ZX81/TS1000 with Z-99. The best true MA¬
CHINE CODE COMPILER for the ZX81/TS1000 com¬
puter. Simply write your new program in BASIC (or
load an EXISTING PROGRAM), press a key and Z-99
will automatically compile it into MACHINE CODE for
you. Give all your programs that SUPER— FAST pro¬
fessional look. Order Z-99 NOW to revolutionize your
programming. Once you try Z-99 you’ll never write
basic programs again!

ORDER No. 03-5271 $1995

Superb fast moving MACHINE-CODE fun. Have an
exciting time playing this EXCELLENT version of the
popular arcade game. *4 age:

ORDER No. 03-4027 *14a!)

ORDER FORM

TO AVOID DELAY PRINT CLEARLY

STOCK NUMBER AND DESCRIPTION

SSS, ™al

13RBB

NAME

Sub-Total

$

ADDRESS

Add sales tax

$

CITY STATE ZIP

$

wft from $25.00 to $29.99 add $3.45

w«P\T^upto$9"to$14" add 52.00 from $30.00 to $39.99 add $3.70
f rom $1 5 00 10 $1 9 99 add 52.50 from $40.00 to $49.99 add $3.95
from $20.00 to $24.99 add $2.85 over $50.00 add $4.25

Total amount
enclosed or to
be charged to
my credit card

$

CHARGE

VISA 1 1

MASTER

CARD

Q

INTERBANK NO

EXR DATE

MO YEAR

In Canada call Datronics (416) 496-2243

DEAR EDITOR:

We found that Hewlett Packard
82954A black print thermal paper
works well in the TS2040 printer.
Although 2 mm narrower than Sin¬
clair's, HP's paper feeds well and
produces sharp text. Print heads
show no wear after limited use.
Stores carrying HP85 computers also
stock HP paper. It comes in 400-
ft. rolls which we respool to fit
Sinclair's printer. We wind the
paper onto 4 1/4" lengths of 3/4"
dowel and mark the last 12- 18" to
let us know the end is near.

Andrew Banta, Orangevale, CA

Please explain exactly what
Syntactic Sum is. For long pro¬
grams, the machine code Syntactic
Sum does not yield the same answer
as Lloyd Painter's BASIC program in
the SYNTAX circular. Painter's pro¬
gram gives a much larger number and
takes much more time to calculate.
Why is this?

Richard Boltuck, Hammond, IN

Syntactic Sum provides a number re¬
lated to keystrokes to check for
changes in programs. It helps when
saving and loading long programs,
because you can lose some bytes in
the transfer from page to machine.

Lloyd's BASIC version can give
a different result from the MC ver¬
sion, which adds values until it
hits 65536, and then rolls over to
start with 1 again. The BASIC
version does not need to roll over
because the ZX/TS holds numbers
larger than 65536 in BASIC. When
the MC and BASIC versions don't
agree, subtract 65536 repeatedly
from the BASIC version until you
get below 65536. The two numbers
should now agree. — AZ

Thank you for helping me iden¬
tify the transistor in my Sinclair
RAM pack. Cross reference and re¬
placement manuals do not list the

transistor, marked ZTX750.

I used an SK3262 RCA PNP 7W
audio frequency driver transistor.
You must change the 2.2K Ohm base
resistor. I used 4.7K Ohms. The
replacement comes in a T05 package
and fits nicely inside the RAM
pack. Sylvania ECG129 or General
Electric GE244 should work as well.

Chuck Goldwater, Sandy, UT

Sinware announces you can now
relocate the big version of HOT Z.
This works nicely with John Olig-
er's mod that opens up the 32-48K
block (SQ, Winter 82). We also
discovered the TS2040 printer in¬
terferes with the high memory ver¬
sion when used with some memories.
As far as I could tell with one of
my systems, the 32-40K block was
messing up. Plugging the printer
in behind a fully decoded EPROM
board cured my problem.

Ray Kingsley, Sinware, Santa Fe, NM

We also cannot get the system up
with both a 64K RAM and TS2040
plugged in. When the display file
prints a character, it calls an
address 32K higher than the ROM
addresses (in the region 32-40K).
Memories greater than 16K must
decode this region. It seems the
TS2040 also uses this area, causing
the display file to crash. — KO

After almost 20 months of
heavy use, my ZX81 developed frus¬
trating hardware problems such as
strange graphics with subsequent
crash on RUNning, perfectly good
tapes not LOADing, crashes while
SAVEing, and unsteady TV pictures.

I discovered a cheap, simple cure:
Q-tips and Archer cleaner/degreaser
(from Radio Shack). Spray a small
amount of cleaner into the can cap
and liberally soak both ends of the
Q-tip. Scrub both sides of the
ZX81 edge connector without disas¬
sembling. Spray the female side of
the 16K RAM pack and scrub TV cable

12

connectors and game adapter.

This procedure takes less than
10 minutes and results in no more
crashes, a steady picture, and an
end to SAVE/LOAD problems.

Herman Geschwind, Greensboro, NC

R.H. Miller reminds us of another
maintenance tip: Apply Cramolin
Red and Blue to contacts on your
computer expansion ports and memory
connectors to avoid crashes. — LV

Paul Crecca (Dear Editor, May
83) and your other readers should
know that QSAVE programs work with
self-running programs. A non-
QSAVEd program may contain:

9000 SAVE "P"

9010 GOTO start line

With QSAVE, the routine becomes:

9000 FAST

9010 PRINT USR 32383 (16K)

9010 PRINT USR 8505 (64K)

9020 GOTO startline

GOTO 9000 SAVES the program,
and RUNS it after LOADing. Change
the start line to CLS to clear the
number QSAVE prints.

Jack Ryan, El Dorado, AR

Many programs don't take ad¬
vantage of this memory-saving tip:
Always substitute N*N for N**2.
Because Sinclair's math routines
keep you from raising a negative
number to a power, you must use
(ABS N)**2 in most cases, which
runs 3 bytes longer and uses sev¬
eral more steps than N*N. For odd
exponents, such as N**3, you get an
error when N<0. To get around it,
use (SGN N) * (ABS N)**3. Again, the
substitute N*N*N does the job fast¬
er. This will not work for N**M,
where M equals an undefined expo¬
nent that becomes defined only when
the program runs, or when M differs
with each execution. Variable and
non-integral exponentiation do not
lend themselves to substitution.

David Taber, Menlo Park, CA

I had a similar experience to
Sidney Parker's (Dear Editor, May
83) with Byte-Back's M-16 RAM kit.
Some tips to add to his procedure:
The best place to cut the trace is
near pin 9 of IC U3 (74S74 flip-
flop) where it's clear of other
traces, and an easy place to patch
if the change fails. IC U3 is the
top IC with the connector at the
bottom. Viewed from the foil side,
it's the left IC. Make the connec¬
tion between pin 9 and 10 on IC U14
(74LS10 gate). On the foil side,
just solder a jumper across the two
pin tips, being careful not to con¬
tact the trace. The pins are num¬
bered #1-7 and #8-14, starting at
the bottom left if the notch is on
the left, looking at the IC top.

Beware of Sidney's second fix.
I made the connector pin high as
suggested and plugged the module in
with perfect results using VU-CALC.
But the computer would not work
with the TS2040. Removing the pin
21 A connection solved the problem.

D.F. Wagner, Canby, OR

I changed a bad Sinclair power
pack with a homemade 9.2 VDQ 1 Amp
regulated and bypassed the VHF mod¬
ulator, branching the TV set in
composite video. It now works bet¬
ter, but I have a gray stain over
2/3 of the screen. How can I fix
this? Also, please comment about
improving load reliability, and the
correct input level for MIC plugs.

W. Brandao, Rio de Janeiro, Brazil

Amplify the video or clamp video
white level to remove the gray
stain. Improve load reliability by
changing the orientation of the TV
to the recorder (try 90 degrees) as
well as experimenting with distance
between the TV and recorder. Plac¬
ing the TV close to the recorder
creates a problem of induced noise.
Use short, medium-quality audio
tapes. The correct input level for
MIC plugs is 5mV peak to peak. — KO

1 3

DESIGN— 8K/16K

Run this flashy program on a
TV as a personalized store window
ad. The program listed displays
the slogan SYNTAX and SQ among mov¬
ing designs. First RUN the program
to see how the slogan is centered,
then EDIT line 130 to insert your
specific message.

RUNning the program displays
several options first. Start as
directed on the lower half of the
menu. RECORD A DESIGN consists of
two options: RECONSTRUCT A DESIGN
freezes a design (without your slo¬
gan) for which you enter codes, and
CREATE A DESIGN randomly generates
designs around your slogan.

Syntactic Sums vary with the
message in line 130. DESIGN uses
slightly more than 2K RAM.

Thomas Warner, Philadelphia, PA

EGG TIMER — 8K/2K

This simple, practical soft¬
ware timer sets off an alarm to let
you know when your egg boils, your
game finishes or time's up.

Type in the program, including
the four commas ending lines 1, 5,

8 and 9. Turn your TV volume up
and press RUN then ENTER.

Type in the boiling time and
hit any key except BREAK to start.

EGG TIMER works best with just
your computer and TV. Removing any
add-ons minimizes background noise,
making the alarm easier to hear.

Change the last number in line
13 to create different alarm tones.

Dan Tandberg, Albuquerque, NM

Use the POWER within your reach!

12 issues
only* $29.95
Save $5.45!
Plus receive
free

{ software
\cassette!

Name

Address

A new and unique magazine for the world’s
most popular personal computer

TIMEX SINCLAIR 1000: the price and
technology breakthrough that finally
made computers affordable.

TIMEX SINCLAIR USER: the magazine
that helps you use the power of this
revolutionary computer.

*U.S. dollars

( ) Money order. Or charge to

( ) Yes, I want to subscribe to TIMEX
SINCLAIR USER at the special rate of*$29.95
for 12 issues delivered to my door. In addition I
understand I will receive the FREE software
cassette with my first issue, i - -

TIMEX SINCLAIR USER covers the full'
spectrum of user interests. Education.
Business applications. Home manage¬
ment. Games and family entertainment.
And TIMEX SINCLAIR USER does it in an
easy-to-understand style that’s
authoritative yet friendly.

Each issue is packed with articles and
information that help owners make use
of the power of their computer. News
about software releases. Reviews. Hard¬
ware developments. Reader question
and answer column. Eight pages of pro¬
gram listings in every issue. New and
unique user applications. How to pro¬
gram. Interviews. Special money saving
offers to readers.

In fact, all the latest ideas and informa¬
tion to ensure that new owners and ex¬
pert users never tire of their computer.

A good reason to order now! Receive a
software program cassette of an ex¬
citing, new arcade game! “Packrabbit”
is a regular $15.00 retail value. Free with
subscriptions for a limited time only.

Mail to TIMEX SINCLAIR USER, 49 La Salle Avenue, Buffalo, New York, 14217

The best add on
value for your ZX81 or
TIMEX SINCLAIR computer

Now that you’ve got a TIMEX SINCLAIR
computer make sure you get the new
magazine that helps you to get the most
out of it ... TIMEX SINCLAIR USER! And
take advantage of our special bonus of a
free software cassette ($15.00 retail
value) with each subscription.

TIMEX SINCLAIR USER is published
monthly. It keeps you totally up-to-date.
It helps you make full use of the power
of your computer.

TS1000

ZX81

FREE BONUS WITH YOUR
SUBSCRIPTION

SUBSCRIBE NOW and take advantage
of our special offer. Only*$29.95 for 12
monthly issues postage paid. This
represents a $6.00 saving over regular
newstand prices. And remember, you
receive a FREE BONUS with every
subscription, a “Packrabbit” software
cassette ($15.00 retail value).

To order call

800-543-3000

“Packrabbit”
Retail value
$15.00

Remember: the TS1000 was designed
precisely for you. Whatever your age and
experience in computers, TIMEX
SINCLAIR USER can help you use the
power of your computer.

Ask for Operator 243. In Canada call
(513) 729-4300 and ask for Operator 243.

These numbers are for orders only. Have
your VISA, Mastercard ready.

For any age
or experience

LETTER RECOGNITION TRAIN — 8K/2K

VENDOR REPORT AND NOTES

Children learning to read must
first master skills of letter rec¬
ognition and discrimination. This
simple program teaches that skill,
with little help from adults. You
won't need to encourage your kids
to learn their letters with this
eye-catching locomotive.

Chugging across the screen,
the train stops at a wall facing a
randomly chosen letter. The train
continues on its way if the child
pushes the correct letter. A wrong
choice keeps the train from moving.

Short practice sessions total¬
ing one hour a month dramatically
improve letter recognition. Assist
the child who frustrates easily by
showing which row of keys contains
the correct choice. Give examples
of letter sounds and usage.

One last word — expect bright
children to rub the keyboard ran¬
domly instead of poking the let¬
ters. Explain this isn't fair and
show that it's quicker to use the
right key. Good luck!

Gene Alvarez, Oviedo, FL

Norris Electronics of Slidell, LA
is out of business. Tracy Norris
states he has filled all customer
orders and cannot return any units
received after June 10.

Timex reports printer paper now in
stock at Timex Products Service in.
Little Rock, AK 501/569-4873. Also
from E. Arthur Brown, Alexandria,

MN 612/762-1631. Call 800-24-TIMEX
for distributors in your area who
may carry printer and/or paper.

Byte-Back M-64 RAMS shipped before
May 20 do not work with the TS2040
printer. Call Byte-Back any time
at 803/532-5812 for advice on easy
repairs (one cut and one jumper) to
insure compatibility. M-64 RAMS
shipped after May 20 and UM64K RAMS
do work with the printer. Cause
relates to "unorthodox" data bus
timing problems when using TS2040S,
Jerry Minchey of Byte-Back reports.

TS 1000™/ZX8VM OWNERS.

• Improve programming and game playing, too!

• Easy to install - no wiring or soldering required

• Clear Vinyl with key-shaped openings and
adhesive backing.

TYPEX/81™ Keyboard □

$5.95 + $1.50 P&H □□□□□□□□□□

[□□□□□□□□□□

Order by mail or phone.

216/234-2662 • VISA & MASTERCARD welcome.

GANHART/EARTHings

115 N. Rocky River Dr.«Dept.X1
Berea, OH 44017

DEALER/DISTRIBUTOR
INQUIRIES INVITED

XFORTH©

WRITTEN IN ENGLAND BY
PROFESSIONAL PROGRAMMERS

• Sinclair ZX-8T 'Timex 1/S 1000*

• Very full FORTH-79 sub-set

• On cassette for 16K (or more)

• Loads in one pass (unlike some
versions which require up to four extra
editor loads)

• Compact coding - 10K+ still available
for user code.

• Sinclair specific look up tables (uses
Sinclair code instead of ASCII)

• Extra utilities - CLS, PLOT ...

• BASIC call - return to BASIC with simple,
one word inst.

• Only $25. 00/ tape + $1.00 P&H. Arkansas
residents add $1 .00.

Formerly distributed only by ZETA'V

SOFTWARE, we have the original FOOTBALL

FORECASTER with 1983 data base.

Available for 16K ZX-81 , T/S 1000 or 16KTRS-80

Color Computer. Specify NFL or College. Only

$19.95 each or $29.95 for both. Add $1.00

P&H. Ark. residents add 4% Tax.

HAWG WILD SOFTWARE

P.O. Box 7668

Little Rock, Arkansas 72217

Cure Memopak incompatibility with
your TS2040 printer by increasing
the power supply, reports Memotech
chief Said Fateh. Memotech's test¬
ers found that at least a 2-Amp
power supply will successfully ope¬
rate your TS2040 and Memopak 32K
RAM pack together.

MicroSync Services, a ZX/TS repair
business in Keene, NH, provides
technical assistance Tues. and
Thurs. 12-3 PM only. Speak with
service representatives Mon.-Fri.
3-6 PM for nontechnical problems.

Frog Software assures us they are
still in business, but extremely
behind schedule. They are now
distributing the May-June issue
of Sinclair Computing .

SyncWare will not carry its battery
backup units after June 30. They
will not fill individual orders
after that time, but will consider
quantity orders by contract.

SOFTWARE REVIEW

Program: Frogger

Price: $19.95

ROM/RAM required?: 8K/16K
Printed listings?: No
Program listable?: No
Language: Machine Code

From: The Cornsoft Group

6008 N. Keystone Ave.
Indianapolis, IN 37217

Frogger helps Timex step up to
the big time arcade with fast ac¬
tion, good medium resolution graph¬
ics and a challenge tough to beat.

You start with five frogs who
must safely reach the far side of a
busy highway and then cross a pond
to get back home. You must first
avoid six countercurrent vehicles
as the frog moves up the screen.
Keyboard controls let you move your
frog in four directions to avoid
oncoming cars. Mistakes here pro¬
duce some cute squashed frogs.

Once across the highway, a
swamp full of crocodiles, snakes
and diving turtles confronts you.

To get your frog home you must
safely hop from one creature to
another as they swim.

Special features in this sec¬
tion give you insects to eat and
points for escorting lady frogs.

Complaints: Cornsoft provides
terse instructions. Frogger loads
in an agonizing four minutes and 15
seconds. Because of machine code
programming, you cannot BREAK out
of the game unless you use their
break code 5T. This leaves the
keyboard locked up, forcing you to
reload to play again. (Cornsoft
advises going easy on the keyboard
to avoid RAM pack wobbling. — Ed.)

This software, like others,
cannot accept different joystick
codes. Frogger, of course, has no
sound, a slight annoyance.

Despite these negative points,
Frogger's fine game action earns
Cornsoft an A for effort.

P.J. Donnelly, Centerport, NY

17

MEMOTECH INTRODUCES THREE NEW
SOFTWARE PACKAGES FOR YOUR
TIMEX-SINCLAIR.

All Memotech software is compatible with both the ZX-81 and
TS-1000 computers and comes in its own Memopak case that plugs
directly into your computer.

MEMOCALC

Now there’s a powerful tool to assist you with reports and financial
forecasts. Memocalc, our spreadsheet analysis software, on EPROM,
enables TS-1000 and ZX-81 users to perform complex number crunching
routines with ease. With Memotech’s 64K RAM a table of up to 7000
numbers with up to 250 rows or 99 columns can be specified. Quick
revisions can be achieved by entering new data to your formula. Then,
by entering the command CALCULATE, the information is reevaluated
and displayed.

Spreadsheet analysis started as an aid to cash-flow analysis, but
this powerful tool has now been generalized and Memocalc with it’s
special ability to perform interactive calculations is invaluable in the
performance of numerical tasks.

MEMOTEXT

The Memotext word processor, on EPROM, brings commercial
standards of text editing to your computer. Text is first arranged in 32
character lines for the screen with comprehensive editing facilities. On
output the user simply chooses the line length for printing and the
system does the rest. Used with our Memopak printer interfaces, it

enables output with 80 character lines, upper and lower case, and single
and double size characters.

MEMOPAK ASSEMBLER

The Memopak Assembler, on EPROM, is for those who want to roll
up their software sleeves and get down to controlling precisely the power
of their computer. It lets you code and edit a source program in the Z80
language, and then assemble it into machine code. You can now write
flexible and economical programs, tailor-made in every detail to your own
needs, and free from the extravagant use of time and space that goes
with the basic high level code.

The editor mode allows you to code directly in the right format,
manipulate individual lines and control the exact placing of source and
machine code. Routines may be merged or listed (even to a commercial
printer with our printer interfaces) .

The Assembler mode handles all standard Z80 mnemonics,
numbers in hex or decimal, comments and user-selected labels. Be an
expert software engineer through this pack and it’s clear documentation.

ORDER AT NO RISK.

All Memotech products carry our 10 day money back guarantee. If
you’re not completely satisfied, return it within ten days and we will give
you a full refund. And every Memotech product comes with a six month
warranty. Should anything be defective with your Memotech product,
return it to us and we will repair or replace it free of charge. Dealer
inquiries welcome. To order any Memotech product use the order
coupon or call our toll-free number 800/662-0949.

TS-1000 is a registered trademark of Timex Corp.

SOFTER

Mail To: Memotech Corporation, 7550 West Yale Ave., Denver, CO 80227

code: STX-6

Price* Qty.

Tbtal

Memocalc

$49.95

Memotext

4995

Memopak Assembler

4995

Shipping and Handling

4.95

$ 4.95

Tax (Colorado residents only)

TOTAL $

‘All prices quoted in ILS. dollars. Prices and specifications subject to change without notice.

□ Check □ MasterCard □ Visa

Account No Exp.

( )

Nan*

Phone number

Address

City State Zip

iitnuittn

CORPORATION

7550 West Yale Avenue, Denver, Colorado 80227, 303/986-1516, TWX 910-320-2917

TIMEX MAKES THE
COMPUTER,

BUT WE MAKE IT TICK.

If you own a TS-1000 or ZX-81 computer and want to bring out the power within it, you’ll want Memotech. From easier input to high
quality output and greater memory, Memotech makes the add-ons you demand. Every Memotech peripheral
comes in a black anodized aluminum case and is designed to fit together in “piggy back” fashion enabling you
to continue to add on and still keep an integrated system look.

MEMOPAK RAM All Memopak RAMs are directly addressable, user transparent, are neither switched nor
paged and no additional power supply is required. You can also choose the Memopak RAM which is just
right for your needs. From economy to power. 16K RAM The Memopak l6K RAM is the most
economical way to add memory to your TS-1000. It is fully compatible with the Timex or Memotech l6K
RAMs to provide you with up to 32K of RAM. The 16K RAM also offers additional add-on capabilities
through its “piggy back” connection. 32K RAM The 322K Memopak enables you to execute
sophisticated programs and store large data bases and like the l6K RAM is fully compatible with Timex’s or
Memotech’s l6K RAMs to give you a full 48K of RAM. 64K RAM The 64K Memopak is powerful
enough to turn your TS-1000 into a computer with capabilities suitable for business and educational use. It
accepts such BASIC commands as 10 DIM A (9000) . MEMOCALC Memocalc, our spreadsheet analysis
software, enables TS-1000 users to perform complex number crunching routines with ease. With
the 64K RAM a table of up to 7000 numbers with up to 250 rows or 99 columns can be specified.

Quick revisions can be achieved by entering new data to your formula.

MEMOTECH KEYBOARD For ease of operation, the Memotech keyboard is a high quality
standard typewriter keyboard, with TS-1000 legends. The keyboard is cable connected to a buffered
interface which is housed in a standard Memopak case and plugs directly into the back of the

TS-1000 or other Memopaks. MEMOPAK HRG The Memopak High Resolution Graphics, with
up to 192 by 248 pixel resolution, enables display of high resolution “arcade game” style graphics
through its resident 2K EPROM, programmed with a full range of graphics subroutines.
CENTRONICS PARALLEL AND RS232 INTERFACES
Memotech’s Interfaces enable your TS-1000 to use a wide range of
compatible printers. The resident software in the units gives the
complete ASCII set of characters. Both Memopak Interfaces provide lower case character capabilities and
up to 80 column printing. The RS232 Interface is also compatible with modems and terminals.

SEIKOSHA GP lOOA PRINTER The Seikosha GP 100A uses a 5x7 dot matrix printing format with
ASCII standard upper and lower case character set. Printing speed is 30 characters/second with a
maximum width of 80 characters. The printer uses standard fanfold paper up to
9-1/2 inches wide. The GP 100A is offered as a package including cable and

interface. Other printer packages are also
available through Memotech.

ORDER AT NO RISK. All Memotech
products carry our 10 day money back
guarantee. If you’re not completely
satisfied, return it within ten days and we
will give you a full refund. And every
Memotech product comes with a six
month warranty. Should anything be

defective with your Memotech product, return it to us and we will repair or replace
it free of charge. Dealer inquiries welcome. To order any Memotech product use

the order coupon or call our toll-free number 800/662-0949.

TS-1000 is a registered trademark of Timex Corp.

[Mail To: Memotech Corporation, 7550 West Yale Ave., Denver, CO 80227

Code: STX-6

Price* Qty. Tbtal |

| 16KRAM

$ 49 95 ,

| 32KRAM

99 95

| 64K RAM

14995

| Memocalc

4995

| Keyboard with Interface

99 95

j High Resolution Graphics

99 95

1 Centronics Parallel Interface

74.95

RS232 Interface

99 95

_ Printer Cable

1995

[ GP 100A Printer Package**

39900

' Shipping and Handling

4.95

$ 4.95 |

CORPORATION

7550 West Yale Avenue, Denver, Colorado 80227, 303/986-1516, TWX 910-320-2917

Tkx (Colorado residents only)

*All prices quoted in U.S. dollars. Prices and specifications subject to change without notice. |
**Please add an additional $5 00 for printer shipping charges
□ Check □ MasterCard □ Visa

1 Account No Rvn

1

<

)

1 Name

1

Phone number

j Address

1 City

-

State Zip

I _

THE PEOPLE'S
^COMPUTER

SUPPLY

MAKE YOUR TIMEX/SINCLAIR ZX80/81 do everything
FROM PLAYING GAMES TO SERIOUS BUSINESS
APPLICATIONS WITH HARDWARE & SOFTWARE FROM
THE PEOPLE'S COMPUTER SUPPLY.

MEMOTECH PRODUCTS OUR PRICE

#1 64KMEMOPAK . $14495

#2 32K MEMOPAK . 9595

# 3 16K MEMOPAK . 49 95

# 4 "MEMOPAK ASSEMBLER" "MEMOTEXT"

"MEMO CALC" . 49 95

#5 HIGH RES GRAPHICS . 9595

# 6 PARALLEL PRINTER

INTERFACE . 7495

#7 RS232 INTERFACE FOR

PRINTER & MODEM . 9595

#8 PRINTER CABLE SPECIFY

RS232 0R CPI . 19.95

#9 NEW DIRECT CONNECT

FULLSIZE KEYBOARD . 99.95

No soldering, plugs into edge connector
#10 SEIKOSHA GP100A DOT
MATRIX PRINTER. . 325.00. . 39995
SE I KOSHA GP250X DOT
MATRIX PRINTER. . 369.95. . 44995

OTHER PRODUCTS

#1 ZONX 81 SOUND

GENERATOR . $49.95

#2 USI PI 1 9" GREEN

PHOSPHOR MONITOR . S134 95

Requires Direct Video Mod to ZX81
FREE Plans with order, simple in¬
stallation

#3 WILLIAM STUART SYSTEMS
LTD

SPEECH SYNTHESIS

UNLIMITED

VOCABULARY FOR ZX80 81
TIMEX . 99.95

#4 BIG EARS SPEECH RECOGNI

TION SYSTEM . 99.95

CRASH GUARD PROTECTION FROM
ACC I DENTAL CRASHES . 19.95

CALL OR WRITE FOR OUR CATALOG.

VISA, MASTER CARD & AMEX
& MONEY ORDERS

PERSONAL CHECK
ALLOW 2 WEEKS

Foreign Orders Please Add $5.50
U.S. Orders Please Add $3.00
Printer & Monitor Orders add $7.50

THE PEOPLE'S COMPUTER SUPPLY
P.O. Box 664, Sidney, Nebraska 69162
Order Phone: Tel. 308-254-3208

A LARGE 60 KEY TACTILE FEEL KEYBOARD
(MEASURES 10" x 4") THAT PLUGS INTO THE SAME
CONNECTORS AS EXISTING KEYBOARD ON YOUR
ZX81 OR TIMEX SINCLAIR 1000. IT HAS ALL
SILKSCREENED LEGENDS IN 3 COLORS ON THE
BASE; MOLDED LEGENDS & GRAPHICS ON KEY TOPS;
8 AUTOMATIC SHIFT KEYS (NO SHIFTING REQUIRED)
FOR EDIT, DELETE, SINGLE & DOUBLE QUOTES,
COLON, SEMI-COLON, FUNCTION & STOP; 5" SPACE
BAR; 2 SHIFT KEYS; NUMERIC KEY PAD.

MASS. RESIDENTS ADD 5% SALES TAX
SHIPPING & HANDLING $4.00/UNIT

DELIVERY 4 - 6 WEEKS. QUANTITY DISCOUNTS. WE
WILL ACCEPT MC/VISA. PLEASE INCLUDE #’S, EXP.
DATE AND SIGNATURE. FOR MORE INFORMATION
SEND SASE. SEND INQUIRIES, CHECK OR MONEY

order TO E-Z KEY SUITE 75B

711 SOUTHERN ARTERY
QUINCY, MA 02169
617/773-1187

LOADING ONE ZX/TS FROM ANOTHER

Send programs from one compu¬
ter to another directly by wire
from the sender's monitor driver to
the receiver's ear jack. Either
SYNTAX'S video inverter or Random
Access's DVC-2 work using normal
video. Transfer occurs at normal
cassette speed.

Connect the monitor output of
your driver (Apr. 83) to the EAR
jack of the machine you want to
load. Use LOAD '"' ENTER to put the
listening machine in receive mode.
Then SAVE "name" ENTER on the send¬
ing machine to transmit the pro¬
gram. After transmission of a
normal program, both screens show
0/0. Press ENTER on the listener
to see the program listing.

We tried the following connec¬
tions to the listener's EAR jack,
with these results:

Sender Output Result

MIC output of Signal too small, no

ZX/TS LOAD

Tape recorder Signal too small, no
as amplifier LOAD

Unbuffered Signal too small, no

video from ZX/ LOAD. Monitor/TV
TS modulator display dims
input

Unbuffered LOADS OK. Monitor

video from pin dims, single dots
16 IC1 disappear

Video output LOAD OK w/normal
from SYNTAX video, inverse does
monitor driver not LOAD
or Random
Access DVC-2

All experiments used 12-foot
stereo cables (Radio Shack 42-2368)
to transmit between machines and
adaptors to convert from RCA plugs
to miniature phone plugs.

We got reliable loading from a
64K machine (RAMTOP at 16K) to a 2K
machine and reversed direction with

20

no problem. We also successfully
sent programs in auto-save mode.
Both machines run the program si¬
multaneously when loading stops.

8K MC VIDEO INVERT ROUTINE

This machine code program can
almost instantly change everything
on the screen to inverse video. If
your computer has 4K or more RAM,
the entire screen, including the
bottom two lines, reverse. With
less memory, only printed charac¬
ters and spaces to their left
change; the rest of the screen
remains white.

To use this program, enter:

RUN, then enter these numbers left
to right and top to bottom:

42 12 64 237 91 16 64 1

118 128 126 185 40 2 128 119

35 124 186 32 245 125 187 32

241 38 0 201

You can now delete the program
lines. Call the routine with:

Enter this program to see the
routine work. Don't RUN it! Use
GOTO 10 to avoid wiping out vari¬
able 1$ that holds your MC.

Try this again without a RAM pack
to see the difference.

You can store machine code in
a string with any MC program that
does not print characters to the
screen. Note that it doesn't use
the first byte.

Jason Harper, Sylvester, TX

TIMEX 1000 COMPUTER
* OWNERS *

IF YOU OWN A 16K RAM MODULE
THEN YOU NEED A “CRASH GUARD”
TO HELP SOLVE YOUR WOBBLE AND
CRASH PROBLEMS

* NO DANGER BUMPING THE MODULE

* PROVIDES A SOLID WORK BASE

* MADE OF HEAVY GUAGE ACRYLIC

VISA OR MASTER CARD ACCEPTED

EXPENSE CUTTERS PRODUCTS, INC.
P.O. BOX 9543 RAYTOWN, MO 64133
(816) 353-1690

10 DAY TRIAL PERIOD
"SATISFACTION GUARANTEED"

CLASSIFIED ADS

Tell your message to nearly 10K ZX/
TS users for just $9/line. Send ad
typed 35 char. /line exactly as it
should appear with check to arrive
by the 15th for next month's issue.
Include a phone no., even if it
isn't in your ad. Send a new order
for each month's ad. No phone or
credit card orders. SYNTAX, RD 2
Box 457, Harvard, MA 01451.

EASY TO USE 8K EPROM PROGRAMMER-
Plugs onto back of computer and
has slot for RAM pack etc. Holds
two 4K 2732 EPROMS which you load
with BASIC or M/C. Can be loaded
back to RAM for programs that fail
safe load instantly. With instruc¬
tions, software, and on EPROM for
$64.95+$3.00 S/H. Extra EPROMS 4.95
WA rsdnts add tax. MAV MICRO¬
PRODUCTS Box 31256 Seattle WA 98103

BUSINESS GRAPHS, 9 Springbrook Cir.
Sacramento, CA95831. Cassette $15.

21

ANIMATED FUN*CAVES OF ZULU, CALVIN
Glomb's Exciting Animated Adventure
Is Now Available For 16K Timex/Sinc
Only 19.95 + 2.00 S/H VISA/MC OK
STUART SOFTWARE 25381-G ALICIA #316
LAGUNA HILLS CA 92653 (714)855-4753

. **TIMEX 2040 PRINTER** .

. **IN STOCK WHY WAIT?** .

Send $93 for immed. UPS delivery
80 column printers from $229.
Memotech products for 10 0/0
off of list. All major softwar
e houses 15 0/0 off list Timex p
aper $6/3 rolls Send check to:
Simply Sinclair PO Box "S" WDBG ,

VA 22194. (703)690-3798

* * * CUSTOM PROGRAMS * * *

Made to your specs. Affordable.

Send Your Requirements With A

SSAE To: G.K. Software,

24 IRMA AVE., PORT WASH., NY 11050

IN-LINE LOAD MONITOR: Load

software tapes Ike a pro! - 12.95

PLASTIC RAM CLIP - 2.00

DIGIT GUIDER: Clear overlay - 6.95

*LOST IN SPACE - 11.95

UNIVERSAL INVENTORY FILE - 16.95

* UNIVERSAL MAILING LIST - 10.95

UNIVERSAL COIN COLLECTION - 10.95

UNIVERSAL STAMP COLLECTION - 10.95

UNIVERSAL RECORD ALBUM COLL— 10.95
♦Requires 16K RAM . GUARANTEED . Please
add $1.50 S&H per order. NJ 6% tax.

M.C. HOFFMAN COMPANY, DEPT.SX6,

P.0. BOX 117, OAKLAND, N.J. 07436

! ! ! ! CUSTOM PROGRAMMING SERVICE. Send
FULL description of needs and $30
Chk/MO (Refunded if I am unable to
produce working program) to:Scott
Wolf. 4949 Webster Rd.,New Haven,

In. 46774 (Please allow 1-6 weeks)

*16K programsILow pr iceslBuisiness,
♦home, and gamesllnfo, SASE to SHM,21
***Brookview Dr ive ,Macedon,NY, 14502

Forecast weather up to 48 hrs. in
advance, no instruments. $5 prgrm.,
instrctns., cloud charts. Weather
Data Network, c/o' K. Buckley, 58-63
246 Crescent, Douglaston, NY 11362.

******* NEW FROM BOB BERCH ********
Software on EPROM (half-blown 2764)
ZX INTEGER COMPILER $30.00

ZX ASSEMBLER/DISASSEMBLER $25.00
For 2732A or 2-2176's, add $5.00
For cassette version, subtract $5.
CARTRIDGE KIT for above EPROM-holds
any 2716, 2732, or 2764, mapped 0-16K
Complete parts & instructions $18.
BOB BERCH 19 JAQUES,ROCH. NY 14620

NFLX FOOTBALL-The first all-graphic
M/C Football game, with full feature
action, avail, now. Send only $9.95
SyncWare, POB 5177 ElMonte CA 91734

450 BLocks*SCREENCALC*120 Functions

- 10 - - 11 - 12 - 13 -

$19.95 /NOV. _ DEC. TOTAL

BANTA SOFTWARE 16K/06.37 26328.45

8088 Highwood Wy Orangevale CA95662

ZX DATA FINDER: "...the best most
economical data handler yet!" SYNC
is now available on cassette-$14 . 95
Tom Woods Box 64 Jefferson, NH 03583

* COMPLETE KEYBOARD KIT w/detailed
instructions, $37 incl. shipping.

* Write for info on other add-ons!
4-SINC POB 715 BLADENSBURG.MD. 20710

Dynamic Electronic Formulas and
Computer-Aided Design Programs
from Softec, P.O. Box 432,
Fairport,NY 14450. All in
BASIC with comprehensive
instructions. Send SASE for a
list of all programs and prices.

MY TYPE teaches touch typing, over
60 lessons. $8/16K cassette . (gaur . )

BIG-KEY LEGENDS are dry-transfer,
graphics for std. 1/2" keycaps, red
& blk . to match ZX-81/TS-1000 . $7./
set-SASE for free sample. DAYDESIGN
790 E. BIG BEAVER, TROY, MI. 48084

***** METAGRAPHICS *****
USE THE FULL GRAPHICS POTENTIAL OF
Your ZX81/TS1000 (16K RAM). 2048
CHARACTERS ! ! BASIC + M/C Gives You
Total Artistic Control. Send $12.95
********* CALLIOPE SOFTWARE *******
4130 COE DR. NE, ALBUQ., NM 87110

22

M-~Z LEDGER-A must for small busi¬
nesses and household finances
M^Z. LIST-For anyone that has items
to list from coins to household
inventory

Send $21.95 for cassette or SASE
for more information to M-Z SYSTEMS
1003 Southcliff; Portland, TX 78374

ZX/TS SOFTWARE Send SASE: John
Anunti, 3309-20th St., SF, CA 94110

OUR POLICY ON CONTRIBUTED MATERIAL

SYNTAX invites you to express opinions related to any Sinclair computer or
peripheral, or the newsletter. We will print, as space allows, letters discussing items
of general interest. Of course, we reserve the right to edit letters to a suitable length
and to refuse publication of any material.

We welcome program listings for all levels of expertise and written in either
Sinclair BASIC or Z80 machine code. Programs can be for any fun or useful
purpose. We will test run each one before publishing it, but we will not debug
programs; please send only workable listings. Programs submitted on cassette can be
tested more quickly and with less chance of error.

In return for your listing, we will pay you a token fee of $2.00 per program we
use. This payment gives us the nonexclusive right to use that program in any form,
world wide. This means you can still use it, sell it, or give it away, and so can we.

We will consider submissions of news and hardware or software reviews. Please
keep articles short (350-400 words). Again, we reserve the right to edit accepted
articles to a suitable length. We will pay 7 cents per 6 characters, including spaces
and punctuation, for accepted articles.

When you send in programs for possible publication in SYNTAX, please
include the following information:

• How to operate the program, including what to input if it does not contain
prompts.

• Whether you can run the program over again and how.

• How to exit the program.

• The Syntactic Sum (program published in Feb. 81 and Jun. 81; send SASE
for a free copy).

• What RAM size program requires.

• What ROM program uses.

We pay for this explanatory text at the same rate as for articles in addition to
payment for the program itself.

If you want us to return your original program listing or article, please include
a self-addressed, stamped envelope. Otherwise, we cannot return submitted material.

**** UNBEATABLE SOFTWARE OFFER ****
3 QUALITY CASSETTS FOR $12 + $2 S&H
BLACKJACK , MASTERMIND , ESCAPE+5 MORE I
COMPUWI Z POB 39078 MT VW, CA 94039
Send SASE and get FREE MC program!!

* **SIMPLE MATH CHEM ENGR PROGRAMS**
PREPARED TO YOUR INPUT/OUTPUT SPEC.
SEND $25 TO MATCHES, 2 740 W.SAN JUAN
TERRACE, TUCSON, AZ, 8571 3 . SATISFAC .
GUARENTEED. 4 TO 6 WEEKS DELIVERY

COMPUSETTE is a Norelco-boxed and
labeled C-10 cassette which is
especially designed for micro¬
computer application by TAPEMASTERS
25 for $20.00 100 for $70.00

COMPUSETTE+ is a C-20 cassette
25 for $22.50 100 for $80.00

COMPUDISK is a SS , DD, Soft Sector
5 1/4 In. Disk 10-$23.00 50 — $110

VISA MASTERCARD C.O.D.

TX 214-349-0081**OTHER 800-527-1227
10% Discount for Check with Order
PO Box 38651W Dallas, Texas 75238
FREIGHT PREPAID*DEFECTIVES REPLACED

******** Father's Day Gift ********
KEYSTROKE MANAGEMENT. tm Four 2K
Games. $14.95 (6% tax CA res.) FREE
color catalog. 2-BIT SOFTWARE, SY5 ,
P.O. Box 2036, Del Mar, CA 92014
*** Charge Orders (619) 481-3629***

SYNTAX is published

monthly by a wholly-owned
subsidiary of The Harvard Group.

Syntax ZX80, Inc.

RD 2, Box 457, Harvard, MA 01451.

Telephone 617/456-3661.

12 issues, $29. Single issue, $4.

Publisher: Kirtland H. Olson
Editor: Ann L. Zevnik
Assistant Editor: Lisa Fass Vivat
Editorial Assistant: Karen Brody

© Syntax ZX80, Inc., 1983. All rights
reserved. Photocopying prohibited.
ISSN 0273-2696

YES! Please send me 12 issues of SYNTAX for $29. 6.83

□ My check for $29 is enclosed. □ Please charge my □ MasterCard
Make checks payable to: □ Diner’s Club □ American Express

SYNTAX ZX80, INC. □ VISA Q Carte Blanche account

account number

exp. date

bank number (MC onlv)

signature

Name

Title

Organization
Address _

City

State

Zin

Day PhoneJ _

)

Evening Phone ( )

I own a □ Sinclair ZX80

□ Sinclair ZX81

Telephone orders call

□ TS1000

617-456-3661

23

Kayde 16K RAM $51.28, Kayde Graphic
Board $58.64, ZON X-81 $49.28, RIST
Parrot $90.30, Graphicomp education
software $11.92. + $1.50 P&H/ord.
CDN prices on request. Call VISA to
416-466-5571. l-4wk deliv. FREE cat
INTEGRATED DATA SYSTEMS
11 Brighton Av Toronto M4M 1P3

Business and Home Software
12 years experience .Satisfaction or
your money back. All programs $7.95

Dome Bookkeeping . Fast Checking

Word Processing . (none faster)

64k bookkeeping.. (Dome++checking++)
80 char, printer driver 64k / M.C.

Same day ship with large S.A.S.E.
Send order to: C.E.D.C., PO Box 222
Salem, Wi. 53168

TRY WINKY BOARD II interface! Copy
ANY ZX/TS cassette, make LOADS easy
+ more. No mods. $24, $18 kit PPD..
KEY CASSETTE LOADS & merges many
programs into one, SAVES ANY ZX/TS
cassette. $10 PPD. G. RUSSELL-ELEC.
RDl Box 539S , Centre Hall PA 16828

"MUST-HAVE" UTILITIES
For Serious Programmers — On Cass.
Save/Merge/Erase BASIC; Cass. Copy;
Data Tape I/O; Swap/Overlay BASIC;
Hex Asmblr w/ Symbols & Relocation;
more. SASE for info. SIRIUSWARE
6 Turning Mill, Lexington, MA 02173

****** TREK TRIVIA ******
EXCITING 16K TREK LORE TEST TWO
Sided Tape: Side 1 Multiple Choice
Direct Answer On Flip Side.

Send $12.95 CK/MO To:F & J SOFTWARE
P.0, BOX 124 GREEN VILLAGE ,N.J. 07935

COMPUTER ENGINEERING SERVICES HAS
IT ALL! Blank C-12 cassettes ideal
for 16K programs. Top quality data
cassettes. 20 for $18.95. 100 for
64.95. P&H; 20-1.75, 100-4.25. ALSO
complete duplication services and
more. Write for brochure. We have
SOFTWARE! MUTUAL FUND ADVISOR will
help you to buy and sell STOCKS &
BONDS. $12 . 95 *COMPUTE will help you
with any math need. $14 . 95*BIQRYTHM
9.95 *SAVE YOUR COUNTRY a blow em up
game. 8.95*RUBIK£ MASTER solves the
"cube" $15. 95 Coming soon, IBAL
STOCK TRADER, PROJECT PHOENIX, MX-
1000, A WORDPROCESSOR, and much
more! (P&H on sof tware$1.25 1st cl)
P.O.BOX 1222 Show Low Az. 85901

***********************************
***********************************
TS USER IS NOW READ BY 1000'S FOR
1000'S OF GOOD REASONS. If you are
a serious user then send $16.95 to
TS USER, Box 155, Vicksburg, MI,
49097, and get 12 super-savers.
***********************************
***********************************

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H\R\ARD

GROLP

Bolton Road, Harvard, Mass. 01451
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william Tomlinson

3635 RIVEREDGE DR.
JACKSONVILLE FL 3221 1

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PAID

Harvard, MA
Permit No. 8
01451